Confined space rescue team vendors9/26/2023 Some fall protection harnesses are specifically designed for rescue operations. Many tripods and davit arms provide attachments for a secondary device, allowing them to immediately attach a rescuer and quickly switch from a non-entry rescue to an entry rescue. It is recommended that there should be a backup system in case the first system becomes unusable due to malfunction, entanglement, or the victim getting stuck. Other Considerations for Retrieval Devices To protect the employee in case the winch fails, they should also be attached to a fall protection system, usually an SRL. The employee is lowered into the confined space with the winch and raised to the surface when the work ends or if a rescue is required. Winches are practical when there are no access ladders. Rescue winches are devices that have raising and lowering capabilities but don't arrest a fall. The employee will typically enter or exit the confined space under their own power, generally by climbing a ladder. It should be noted that the SRL-Rs capabilities are generally only used when an incident happens. The switch from arresting an employee to retrieving varies from model to model, but it is generally very quick and simple, allowing the rescue to start almost immediately after the incident. These devices have a large mechanical advantage when in retrieval mode, usually in the range of 30:1, ensuring the rescuer has the physical ability to retrieve the victim. The most common retrieval device by far is the self retractable lanyard with rescue capabilities (SRL-Rs).Īlthough they are included in the same standard with the other SRL devices ( ANSI Z359.14), these devices should not be confused with regular self-retracting lanyards (SRL-P) or leading-edge models (SRL-LE), since SRL-Rs are not designed only to arrest a fall, but also to retrieve an injured employee by raising or lowering them. Retrieval Devices Self Retracting Lanyards with Rescue Capability Tripods and Davit Arm systems used for confined space rescue should meet the specifications of ANSI/AASP Z359.1, as well as comply with OSHA confined space ( 1910.146) and fall protection ( 1910.132) standards. Some also have a swivel arm that allows rescuers to effortlessly turn and move the victim on the solid ground, which is another advantage over tripods. Their adjustable base allows them to be configured around a diversity of entrances. They are designed like a crane and reach over the entry point of the space. Often, the three legs are connected to each other at the base, through a chain or bar.ĭavit arms serve the same purpose but only block the entrance to the confined space on one side. To mitigate this inconvenience, tripods are fairly tall, generally nine feet or greater. The three legs of the tripod provide a stable platform but limit the access around the entry point of the confined space. Tripods are the backbone of the non-entry rescue system.
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